【GSAP】転がるテキストに時間差出現を組み合わせる【デモあり】

<section class="animation-area">
  <div class="text-wrapper">
    <h1 data-text="転がるテキスト">
      <span class="text-inner">Text RollOver</span>
    </h1>
  </div>
</section>

*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
html,body,main,section{
    width: 100%;
}
.animation-area{
    width: 100%;
    height: 100vh;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}
.text-wrapper {
	display: inline-block;
	margin: 0 1em;
}
.text-wrapper span{
	display: inline-block;
}
.text-wrapper h1 {
	position: relative;
	display: inline-block;
	padding: .1em 1em;
	color: #333;
	font-weight: 500;
    font-size: 8vw;
	line-height: 1;
	text-decoration: none;
	overflow: hidden;
}
.text-wrapper h1::after {
	position: absolute;
	top: 0;
	left: 0;
	content: attr(data-text);
	display: block;
	width: 100%;
	padding: .2em 0;
	transition: .3s ease-in-out;
	transform: translateY(2em);
    text-align: center;
}
.text-wrapper h1 .text-inner {
	display: inline-block;
	transition: .3s ease-in-out;
}
.text-wrapper h1:hover::after,
.text-wrapper h1:focus::after {
	transform: translateY(0);
}
.text-wrapper h1:hover .text-inner,
.text-wrapper h1:focus .text-inner {
	transform: translateY(-2em);
}

function txtSplit(el){
  var content = el.textContent;
  var text = content.trim();
  var newHtml = "";

  text.split("").forEach(function(v) {
      newHtml += "" + v + "";
  });
  el.innerHTML = newHtml;
}

var txtsplit = document.querySelector('.text-wrapper span');

txtSplit(txtsplit);

const textInner = document.querySelector('.text-inner');

gsap.from(textInner.querySelectorAll('span'),{
  stagger:{each:0.05},
  y:'120%',
  duration:.5
})